A massive manhunt is underway for a former Los Angeles cop accused of gunning down several other officers in revenge killings. Do you consider your -- under attack. Bob based on the circumstances -- shooting yes -- do the LAPD says 33 year old Christopher donors shot two officers in Riverside California early Thursday. One was killed and his second was seriously injured. Minutes earlier detectives say donor also shot at officers in Corona, California. A bullet -- one officer's head. Police say there are witnesses as -- -- sped away in what's believed to be a great -- -- titan pick -- truck and he's probably been changing the licence plates. During his whereabouts are currently unknown we are considering him armed and dangerous -- we're asking for the public's assistance. -- was fired by the LAPD in 2008. He allegedly left behind an online manifesto where he claims he was terminated for reporting abuses. And in that manifesto he blames retired captain Randy Kwan for getting him fired reading in part. I never had the opportunity to have a family of my own -- terminating yours. Detectives believe donor gunned down -- 28 year old daughter Monica and her fiance in an Irvine parking lot on Sunday. And his message also lists the names of dozens of other officers threatening to hunt down their families. That's who detectives believe donor was targeting this morning there were responding to a special. Added protection. -- individuals that were identified on them manifesto by the suspect. Police now say daughter's former LAPD badge has been found near San Diego's airport in the manifesto he says the attacks will stop. When LAPD states the truth publicly about his innocence. Brady hit ABC news Los Angeles.

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